Why is important to remove objects that are no longer need in your program?
a. To prevent over writing new objects with old data
b. To prevent program crashes
c. To free up memory for other uses
d. So the same variable can be assigned to a different object
c. To free up memory for other uses
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To view or modify a file, you first must ____.
A. edit it B. close it C. copy it D. open it
What command would you use to display the total number of printers on your system. Show the execution of the command and its output on your system.
What will be an ideal response?
Match each of the following computer generations to the type of electrical component used:
I. first-generation II. second-generation III. third-generation IV. fourth-generation A. transistors B. integrated circuits C. microprocessors D. vacuum tubes
A(n) ____________________ contains tags and other instructions that a Web browser processes and displays as a Web page.
Fill in the blank(s) with the appropriate word(s).